PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/18-21:27:30
G08     316.1          14.7                7.2 +/-    1.68      18.1 +/-    1.68  0.070 / 0.080
G10     324.7          59.1               11.1 +/-    0.98      12.7 +/-    0.98  0.070 / 0.090
G14     215.1          23.1               15.2 +/-    2.84      31.0 +/-    2.84  0.040 / 0.060
G15     46.1           15.1                7.1 +/-    2.33      17.6 +/-    2.33  0.040 / 0.060
G20     28.9           61.8               10.0 +/-    0.52      11.2 +/-    0.52  0.120 / 0.340
G21     127.7          63.2               11.4 +/-    0.83      12.6 +/-    0.83  0.110 / 0.330
G24     82.1           30.5               10.5 +/-    0.70      18.2 +/-    0.70  0.140 / 0.360
G27     282.6          38.0               10.0 +/-    1.24      15.0 +/-    1.24  0.150 / 0.330
G32     218.1          47.3               13.2 +/-    1.46      17.2 +/-    1.46  0.160 / 0.410